JP2018117860A - Handrail for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail for a bathtub in which the positional deviation of the handrail in mounting is prevented, and inconvenience that an abutting part rides up on the top face of a bathtub lateral wall is strongly prevented when temporarily mounting on the bathtub lateral wall.SOLUTION: A handrail for a bathtub includes: a body frame having a mounting part mounted with a handrail body and mounted on the top face of a bathtub lateral wall, and an abutting base part connected to the mounting part and provided with an abutting part abutted on the one lateral face of the bathtub lateral wall; an auxiliary frame detachably mounted on the body frame; a pressing part pressing the other lateral face at an opposite side to the lateral face of the bathtub lateral wall on which the abutting part is abutted; and a moving device mounted on the auxiliary frame for advancing and retracting the pressing part to the abutting part. The abutting part has in the lower part of the abutting part, a guide part having an inclined surface formed so as to gradually decrease a thickness of the abutting part from the abutting surface to the abutting base part.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a handrail for a bathtub that is placed on the upper surface of a bathtub side wall and is detachably attached to the bathtub side wall by clamping the bathtub side wall from both sides. Generation of stress (frictional force) due to misalignment is prevented, and the contact portion is provided with an inclined surface or the like formed so as to gradually reduce the thickness of the contact portion. The present invention relates to a handrail for a bathtub in which the inconvenience of riding on the upper surface of the bathtub side wall is strongly prevented.

  Conventionally, there is a handrail for a bathtub that can be attached detachably by clamping the side wall of the bathtub from the washing side and the bathtub side so that the elderly can easily support the body when entering and leaving the bathtub. Are known.

  In addition, the bathtub is made of a strength member that integrates the inner and outer walls of the bathtub, and the shape of the bathtub is increased from that of a conventional bathtub that has a relatively simple shape such as a cube. With the advancement of design, etc., the inner wall of the bathtub is made of a strong member, and the outer wall other than the rim of the bathtub is made of a removable decorative board (apron) that has no strength, and There are various types of bathtubs, up to the latest unit baths, which have more complicated shapes.

  For this reason, as for the bathtub manufactured from the member in which the inner wall and the outer wall of the bathtub are relatively strong like a conventional bathtub, for example, it is described in Japanese Patent Application Laid-Open No. 2011-189069 (Patent Document 1). In addition, there is a handrail for a bathtub that clamps the bathtub side wall from the washing room side and the bathtub side by a pressing plate and a pressure receiving plate that are arranged to face each other so as to have substantially the same contact area and are substantially mirror-symmetrical. Is provided. Further, as in the latest type of unit bath, a bathtub in which the inner wall of the bathtub has strength but the outer wall other than the rim portion does not have strength is described in, for example, Japanese Patent Application Laid-Open No. 2015-173699 (Patent Document 2). As shown in the figure, a pressure plate flattened in the vertical direction that contacts only the upper rim portion having strength is disposed on the washing area side, and a pressure receiving plate having a larger contact area than the pressure plate is disposed on the bathtub side. By arranging, a handrail for a bathtub that clamps the side wall of the bathtub from the washing area side and the bathtub side is provided.

  However, there is a problem that it is difficult for a user of a handrail for a bathtub who does not have expertise on the bathtub to accurately determine the type of the bathtub and to select a handrail for the bathtub that matches the user. In this way, in the conventional handrail for bathtubs, the type of handrail for bathtubs that fits according to the type of bathtub to be installed had to be selected. The development of a highly versatile bathtub handrail that can be easily attached to the side wall of the bathtub has been awaited.

Moreover, in the case of the handrail for bathtubs described in Patent Documents 1 and 2, since both press the pressing plate supported by the side wall mounting frame against the bathtub, the bathtub side wall is clamped. a) As shown in (b), when the pressing plate is pressed against the bathtub side wall, the handrail supported by the side wall mounting frame is separated from the bathtub side wall (the center of the handrail and the bathtub side wall). The distance L _{2 from} the center cannot be attached to the mounting position (distance L ₁ between the center of the handrail and the center of the bathtub side wall) where the handrail was originally planned, and the attachment state is also extremely unstable. There was a problem of becoming.

  In particular, the handrail for bathtubs described in Patent Documents 1 and 2 is such that when the pressing plate is pressed against the bathtub side wall, the side wall placing frame placed directly on the bathtub side wall moves relative to the bathtub side wall. Stress (friction force) is generated between the side wall mounting frame and the upper surface of the bathtub side wall. As a result, even if the pressing plate is pressed against the bathtub side wall, the side wall mounting frame cannot move sufficiently, and an internal stress (friction) is generated between the side wall mounting frame and the upper surface of the bathtub side wall due to elastic deformation of rubber or the like. Force) is accumulated, resulting in further displacement of the side wall mounting frame and the upper surface of the bathtub side wall by deforming the handrail for the bathtub and the side wall of the bathtub or releasing the unintended internal stress (frictional force). There was an essential problem.

  Moreover, in the handrail for bathtubs described in Patent Literature 2, the center of the pressing portion of the pressing plate that presses only the upper rim portion of the outer wall of the bathtub and the pressing of the pressure receiving plate that presses the lower area of the inner wall of the bathtub than the pressing plate. Since the center of each part is eccentric in the vertical direction, a moment that tilts inward and outward of the bathtub side wall is generated in the handrail for bathtub. For this reason, in the case of the handrail for bathtubs described in Patent Document 2, a leg portion must be always attached to prevent the handrail for bathtubs from tilting regardless of the form of the bathtub to be attached. There was a problem that the structure and installation work became complicated.

  On the other hand, regarding the problem that the handrail is separated from the side wall of the bathtub when the handrail for the bathtub is attached, and the problem that the position of the handrail is attached and the stress caused by the position deviation occur, for example, JP 2000 As described in Japanese Patent No. -336882 (Patent Document 3), the handrail placed on the washing side is attached to the side wall mounting frame placed directly on the bathtub side wall, and the pressing plate is a handrail. There is provided a handrail for a bathtub which solves the above problem by being attached to a connecting frame disposed on the opposite bathtub side so as to be able to advance and retract.

  However, in the case of the handrail for bathtubs described in Patent Document 3, since it has a substantially U-shaped shape basically downward, it can be covered from the upper side to the lower side of the bathtub side wall during installation. Temporarily placed. For this reason, in order to adapt to the step of the outer wall of the bathtub, etc., if the abutting portion protruding from the foot plate of the straddling member is previously attached to the handrail for the bathtub, the corresponding contact portion of the bathtub side wall is attached at the time of installation. It is predicted that there will be a problem of riding on the upper surface and being attached in an incomplete position and state.

JP 2011-189069 A JP2015-173699A JP 2000-336882 A

  Therefore, the present invention is a handrail for a bathtub which is placed on the upper surface of the bathtub side wall and is detachably attached by clamping the bathtub side wall from the washing place side and the bathtub side, and in particular, the position of the handrail (grip) at the time of installation. Generation of stress (frictional force) due to misalignment and misalignment is prevented, and when temporarily placing the handrail for the bath so as to cover the bath from the upper side to the lower side of the bath side wall, the abutting portion is located on the side wall of the bath. An object of the present invention is to provide a handrail for a bathtub in which the inconvenience of riding on the upper surface of the bathtub is strongly prevented.

  As a result of intensive studies on the type of bathtub, a method of attaching a handrail for a bathtub to a bathtub side wall by a clamp, and the structure thereof, the handrail is attached to a frame that is in direct contact with the top and side surfaces of the bathtub side wall. Provided, a pressing mechanism comprising a pressing plate, a moving device, etc. is provided on a frame arranged on the bathtub side, and includes a guide portion having an inclined surface or the like formed so as to gradually reduce the thickness of the contact portion. The inventors have found that the object can be achieved and have completed the present invention.

  That is, according to the present invention, the handrail main body is attached and is placed on the upper surface of the bathtub side wall, and is connected to the placing section and is in contact with one side surface of the bathtub side wall. A main body frame having an abutting base provided with an abutting portion, an auxiliary frame detachably attached to the main body frame, and a side surface of a bathtub side wall against which the abutting portion abuts. A pressing portion that presses the other side of the opposite side; and a moving device that is attached to the auxiliary frame, and that moves the pressing portion forward and backward toward the abutting portion. The contact portion has an inclined surface, a plurality of steps, or a combination of an inclined surface and a step formed so as to gradually reduce the thickness of the contact portion from the contact surface of the contact portion toward the contact base portion. A guide part is provided below the contact part. Tub handrail, characterized in Rukoto is provided.

  In the handrail for bathtub of the present invention, the handrail is provided on the main body frame that can be brought into contact with the upper surface and the side surface of the bathtub side wall and fixed at the position, and the pressing portion is interposed through the auxiliary frame connected to the main body frame. Therefore, the main body frame does not move with respect to the bath layer side wall even if the pressing portion is moved forward and backward. Therefore, the handrail for bathtubs of the present invention does not cause positional displacement or stress (friction force) between the main body frame and the upper surface of the bathtub side wall even when the pressing portion is pressed against the bathtub side wall, and is extremely stable. Can be attached.

  Moreover, in the handrail for bathtubs of this invention, the contact part attached to the contact base of the main body frame is the lower part of the corresponding contact part, and the corresponding contact part from the contact surface of the contact part toward the contact base part. A guide portion having an inclined surface, a plurality of steps, or a combination of an inclined surface and a step formed so as to gradually reduce the thickness of the step can be provided.

  Since the handrail for bathtubs of the present invention basically has a substantially U-shape downward, it is temporarily placed so as to cover from the upper side to the lower side of the bathtub side wall at the time of attachment. For this reason, if the handrail for the bathtub is provided with an abutting portion that protrudes from the abutting base portion of the main body frame in order to adapt to the step of the outer wall of the bathtub, the corresponding contacting portion is attached to the upper surface of the bathtub side wall during installation. There is a danger of getting on and mounting in an incomplete position and state.

  However, as in the present invention, an inclined surface, a plurality of steps, or an inclination formed so as to gradually reduce the thickness of the corresponding contact portion from the contact surface of the contact portion toward the contact base portion at the lower portion of the contact portion. When a guide portion having a combination of a surface and a step is provided, the problem that the abutting portion rides on the upper surface of the bathtub side wall is eliminated at the time of installation, so the incomplete position of the handrail for the bathtub, Attachment in a state can be prevented reliably.

  As described above, the guide portion is provided at the lower portion of the contact portion to prevent the contact portion from climbing onto the upper surface of the bathtub side wall during mounting. It is not necessary to be the same as the horizontal width dimension, and it may be shorter or longer than the horizontal width dimension of the contact portion. However, if the width dimension of the guide part is shorter than the width dimension of the contact part, the guide part can be made even more compact, and the guide part is mistaken for the contact part both visually and functionally. This is preferable because it can be prevented.

  The “width of the guide portion” means the horizontal length in the direction perpendicular to the direction of clamping the bathtub side wall by the contact portion and the pressing portion in the guide portion. The “width dimension of” means the length in the horizontal direction in the direction perpendicular to the direction of clamping the bathtub side wall by the abutting portion and the pressing portion at the abutting portion, similarly to the width dimension of the guide portion. .

  If the inclined surface provided in the guide portion has a gradient so as to gradually reduce the thickness of the contact portion from the contact surface of the contact portion that is separated from the contact base portion toward the contact base portion, It does not need to be formed continuously with the contact surface of the contact portion or the surface of the contact base portion, and may be connected via a step from the contact surface of the contact portion or the surface of the contact base portion.

  Moreover, when providing a level | step difference in a guide part, since generally R (R) which has a predetermined radius is often attached to the edge of the bathtub side wall upper surface, the horizontal depth of the level | step difference is the bathtub side wall upper surface. If it is smaller than R (R) of the edge portion, the abutting portion will not ride on the upper surface of the bathtub side wall during installation. For this reason, as for the level | step difference of a guide part, it is preferable that the horizontal depth of a level | step difference shall be 1 mm or more and 12 mm or less, and it is more preferable when it shall be 1 mm or more and 6 mm or less. Moreover, a level | step difference may combine a several level | step difference, and may be combined with the inclined surface mentioned above.

  In addition, "the horizontal direction of the step" means the horizontal direction in the direction orthogonal to the contact base of the main body frame and the contact surface of the contact part, and when the handrail for bathtub is attached to the bathtub side wall The direction parallel to the upper surface of the bathtub side wall and substantially coincides with the direction in which the bathtub side wall is clamped by the contact part and the pressing part. For this reason, “the horizontal depth of the step” means the distance from the front to the back of the step in the direction of clamping the bathtub side wall by the contact portion and the pressing portion, and usually forms one end of the step. The distance from the depressed corner to the swollen corner forming the other end is substantially the same.

  The handrail for bathtubs of the present invention is provided on the main body frame, and changes the thickness of a part of the abutting part that abuts against the outer wall of the bathtub so as to be thicker or thinner than the thickness of the remaining part. Alternatively, it can be made thicker or thinner. For this reason, the handrail for bathtubs of the present invention does not select the shape or form of the bathtub in principle, and even if the bathtub inner wall and the outer wall are made of members having strength, the inner wall of the bathtub has strength. The outer wall other than the rim portion can be attached even if it is a bathtub having no strength.

  For example, when the outer wall of the bathtub includes a case where there is a step and has strength, the handrail for bathtub according to the present invention abuts by adjusting the thickness of a part of the abutting portion so as to follow the shape of the wall surface. The pressing force (reaction force) of the portion can be distributed over the entire abutting surface so as to face the pressing force of the pressing portion at a position that is substantially mirror-symmetric (see FIGS. 15A and 15C). For this reason, the handrail for bathtubs of the present invention can form a balanced clamped state inside and outside the bathtub side wall without causing a rotational moment in the handrail for bathtubs. In addition, if the pressing force (reaction force) of the abutting portion is dispersed, the pressing force (reaction force) per unit area is also reduced, so that the risk of damaging the bathtub side wall is reduced and the handrail for the bathtub is attached. The strength range (applicable range) of the bathtub side wall that is allowed to be increased.

  In addition, when the outer wall of the bathtub includes a case where there is a step and does not have strength other than the rim portion, the handrail for bathtub according to the present invention has a thickness of a partial region of the abutting portion larger than a thickness of the remaining region. It is possible to apply a pressing force (reaction force) of the contact portion only to the rim portion of the bathtub outer wall by preparing a thickened or thinned portion in advance or adjusting the thickness of a part of the contact portion. Can focus on. For this reason, the handrail for bathtubs of the present invention can be firmly attached even to a bathtub whose outer wall other than the rim portion does not have strength, and a portion having no strength other than the rim portion (apron, makeup) It is also possible to prevent damage to the plate (see FIGS. 14A and 14B).

  In the present invention, increasing or decreasing the thickness of the partial region of the contact portion is achieved by configuring the contact portion from a block that is detachably attached to a partial region of the contact base portion of the main body frame. Is done. That is, by attaching a block having a predetermined thickness and an area smaller than the contact base to, for example, the upper region or the lower region of the contact base, the thickness of a partial region of the contact portion is changed to the thickness of the remaining region. It can be made thicker or thinner.

  Further, in the present invention, the change of the thickness of the entire region of the contact portion and the increase or decrease of the thickness of the partial region can be detachably attached to the contact base portion of the main body frame and This is achieved by configuring the contact portion from a plurality of blocks divided in the vertical direction. That is, for example, a plurality of blocks having a predetermined thickness and an area smaller than the abutting base are uniformly mounted on the surface of the abutting base, or all the blocks among the plurality of blocks are attached and detached. Thus, the thickness of the entire region of the contact portion can be changed. Moreover, by removing a part of the blocks, the thickness of the partial region of the contact portion can be made thicker or thinner than the thickness of the remaining region.

  In addition, it is preferable that the contact part is provided with an elastic rubber that is detachably attached to the surface of the contact base part or the surface of the block for the purpose of improving the grip force by preventing slipping and preventing damage to the bathtub side wall.

  In the present invention, when the contact portion includes a plurality of blocks, it is preferable that at least two of the plurality of blocks have different widths in the vertical direction. If the abutting part is provided with blocks having different widths, the abutting part can follow the step shape even when the bathtub side wall has various steps with different widths (heights) in the vertical direction. If they can be brought into contact with each other (see FIGS. 15A and 15C), they can also be brought into contact locally according to the step shape (see FIGS. 14A and 14B).

  In the present invention, the block constituting the contact portion is replaced with another block having the same or different size or thickness, or another block having the same or different size or thickness is further mounted on the block. By doing so, the thickness of the entire region of the contact portion can be changed, or the thickness of a partial region of the contact portion can be made thicker or thinner than the thickness of the remaining region.

  In this invention, a block can also be comprised from the subblock of the same or different thickness laminated | stacked so that attachment or detachment was possible. If the block is composed of sub-blocks with different thicknesses, the entire area or partial area of the contact part can be changed to various thicknesses by changing the number of sub-blocks stacked or the combination of sub-blocks to be stacked. can do. As a result, even when the bathtub side wall has various uneven steps, if the contact portion can be brought into contact with the uneven portions of the step, locally according to the uneven portions of the step. It can also be contacted. Further, if the sub-block is configured as a thin plate-like component, the thickness of the contact portion can be finely adjusted.

  In the present invention, the connection between the block and the contact base of the main body frame and the connection between the block and another block are provided with a protrusion on the surface of the contact base and / or the block, and the protrusion on the back surface of the block. This is achieved by providing a recess for fitting and fitting the recess of the block into the abutment base or the protrusion of another block. Note that a plurality of protrusions provided on the contact base and / or the front surface of the block and a plurality of recesses provided on the back surface of the block may be arranged. Or you may provide in the surface of a block and may provide a convex part in the back surface of a block.

  Thus, in the present invention, the connection between the block and the abutment base and the connection between the block and the other block have a fitting structure with concave and convex portions that cannot physically move in a direction orthogonal to the fitting direction. Since it is used, for example, even if a lateral force that tilts to a handrail is applied, a positional deviation may occur between the block and the contact base and between the block and another block. Absent.

  In addition, the block may be attached to the contact base or another block using a fastener such as a screw for the purpose of further strengthening the above-described displacement prevention or for the purpose of completely preventing the block from being accidentally detached. It may be screwed.

  In recent years, unit baths are constructed as a rim part that has the strength that the upper part of the outer wall of the bathtub is continuous with the inner wall in consideration of design and maintenance, and the lower part of the rim part is constructed as a removable apron that has no strength. There are many. For this reason, when the thickness of the upper region of the abutting portion of the main body frame is made thicker or thinner than the thickness of the lower region, it often occurs at the upper portion of the outer wall of the bathtub (the connecting portion between the rim portion and the apron). Since the step can be easily absorbed, the handrail for bathtub of the present invention can be applied to almost any type of unit bath.

  Furthermore, the handrail for bathtubs according to the present invention has an extension part in which the placement part placed on the upper surface of the bathtub side wall extends outward from the grip support part in the width direction of the placement part. Therefore, even if force is applied to the upper grip of the handrail body in the horizontal direction along the length of the bathtub side wall, the rotation moment acting on the handrail body is caused by the extension part coming into contact with the upper surface of the bathtub side wall. Since it supports, it can prevent strongly that the handrail for bathtubs rotates to the longitudinal direction of a bathtub side wall on the bathtub side wall upper surface, or falls. In addition, in the handrail for bathtubs of the present invention, even if a force is applied to the upper grip in the horizontal direction along the thickness direction of the side wall of the bathtub, the clamp mechanism composed of the contact portion and the pressing portion is the handrail for the bathtub. It plays a role to strongly prevent the side wall from rotating or falling in the thickness direction.

  More specifically, since the horizontal force along the longitudinal direction of the bathtub side wall applied to the upper grip of the handrail body is transmitted to the mounting portion via the grip support portion connected to the upper grip, The handrail main body is subjected to a force that rotates or falls in the longitudinal direction of the bathtub side wall with the grip support portion and the mounting portion as the center. However, since the mounting portion of the main body frame is provided with an extending portion extending further outward from the attachment portion between the grip support portion and the mounting portion, the grip support portion and the mounting portion are mounted on the handrail main body. Even if there is a force to rotate or fall in the longitudinal direction of the bathtub side wall around the mounting part with the mounting part, the extension part becomes an arm supported on the upper surface of the bathtub side wall and the handrail body rotates. It can be powerfully stopped.

  In other words, the handrail for bathtub of the present invention is provided with an extending portion extending further outward from the attachment portion between the grip support portion and the placement portion in the width direction of the placement portion of the main body frame. Therefore, the center of rotation of the handrail body when a force is applied in the horizontal direction along the longitudinal direction of the bathtub side wall is substantially provided in the mounting portion from the attachment portion between the grip support portion and the mounting portion. It moves to the edge of the extended part. Therefore, in order to rotate the handrail body, it is not sufficient to apply only a horizontal force to the upper grip, and a force upward from the horizontal direction is used to lift the attachment portion between the grip support portion and the mounting portion. Need to add. For this reason, the handrail for a bathtub of the present invention having an extending portion extending outward from the grip support portion has the grip support portion attached to the end portion of the mounting portion, and the extension portion Compared to a handrail for a bathtub that does not have, it has a structure that is difficult to rotate or toppling over the upper surface of the bathtub side wall.

  In the present invention, the “width direction of the placing portion” means a horizontal direction in a direction perpendicular to the direction in which the bathtub side wall is clamped by the contact portion and the pressing portion in the placing portion of the main body frame. When the bathtub handrail is attached to the bathtub side wall, it is also a direction substantially coincident with the longitudinal direction of the bathtub side wall upper surface.

  Moreover, since the extension part should just extend toward the outer side rather than the grip support part in the width direction of a mounting part, the width dimension of the mounting part in which the extension part was formed is the width | variety of a contact part. There is no need for a relationship such as a length or a length to a width dimension of the contact base of the main body frame. For this reason, in the present invention, the width dimension of the mounting part provided with the extending part may be the same as, for example, the width dimension of the contact part and the width dimension of the contact base part. Although the same, it may be longer than the width dimension of the contact base, and may be longer than, for example, the width dimension of the contact section and the width dimension of the contact base.

  In the present invention, the width dimension of the mounting part having the extension part is the same as the width dimension of the contact part or the contact base part. The width dimension need not be the same as the entire width dimension, and may be the same as the width dimension of all or a part of the contact portion or the contact base portion. In particular, if the width dimension of the placement part having the extension part is the same as the width dimension of all or a part of the contact part, the contact part does not depend on the width dimension and is contacted by the placement part. Since the entire width of the part can be supported or brought into contact, the abutting part can be fixed to the main body frame without causing a backlash between the abutting part and the mounting part.

  The extending part is preferably provided in an end region of the mounting part whose distance from the contact surface of the contact part is within 10 cm, and the mounting part whose distance from the contact surface of the contact part is within 5 cm More preferably, it is provided in the end region. Note that the “distance from the contact surface” is lowered from an arbitrary point P of the extended portion (end portion of the mounting portion) to the plane (contact surface) α, as in the general definition of geometry. It means the length of PQ when the vertical leg is Q.

  In the present invention, the main body frame is fixed at the position by placing the placing portion on the upper surface of the bathtub side wall and bringing the abutting portion into contact with the side surface of the bathtub side wall. The protruding portion is disposed within a certain distance from the contact surface of the contact portion. For this reason, in this invention, if it is going to arrange | position an extension part on the upper surface of a bathtub side wall with the exact and minimum required size, the distance from the contact surface of a contact part will be 10 cm or less. It is preferable to provide in the end region of the placement portion, and more preferably in the end portion region of the placement portion whose distance from the contact surface of the contact portion is within 5 cm.

  In the present invention, the moving device for advancing and retreating the pressing portion toward the contact portion includes a nut rotatably attached to the vertical portion of the auxiliary frame, a handle knob for rotating the nut, The front end portion is connected to the pressing portion and is configured to be screwed into the nut. Further, when the force is less than a predetermined force, the rotational force is transmitted from the handle knob to the nut. A torque transmission / cut-off mechanism that cuts off the transmission of torque to the nut can be included.

  In the present invention, since the moving device is constituted by a nut and a bolt, the pressing portion can be easily moved close to or away from the contact portion by screwing back and forth of the bolt, and the state thereof is also securely held. Can do. Further, in the present invention, the nut is rotatably attached to the vertical portion of the auxiliary frame, and the bolt and the pressing portion attached to the tip thereof are screwed back and forth by rotating the nut by the handle knob. The position of the knob does not change with respect to the vertical part. As a result, according to the present invention, the handle knob can be prevented from protruding from the handrail main body for the bathtub, which is extremely safe for the user.

  In the present invention, since the moving device has a torque transmission / interruption mechanism, even if the user turns the handle knob and strongly pushes the pressing portion toward the contact portion, the bathtub side wall is not damaged. The handrail for bathtub of the invention is required and can be attached to the bathtub side wall with sufficient pressing force (clamping force). Further, even if the above-described torque transmission / interruption mechanism is provided in the moving device for the pressing portion, the position of the handle knob does not change with respect to the vertical portion of the auxiliary frame.

  Further, when the moving device has the nut and bolt structure as described above, the torque transmitting / shut-off mechanism is provided at the end of the nut and the first locking means provided inside the handle knob. Further, by connecting the second locking means with the engaging means, it is possible to provide a torque transmission lock mechanism that allows the turning force to be always transmitted from the handle knob to the nut even when a predetermined force is exceeded.

  If the above-mentioned torque transmission / cutoff mechanism is provided in the moving device, the handle knob is rotated forward so that the pressing part moves forward by locking the rotation of the nut when the pressing part is excessively retracted. However, the turning force is not transmitted to the nut, and so-called “handle knob idling phenomenon” may occur. Therefore, when the torque transmission / shut-off mechanism is provided with the torque transmission lock mechanism as described above as in the present invention, the first locking means provided inside the handle knob and the end of the nut are provided. Further, the second locking means can be easily connected with the engaging means, so that the turning force can always be transmitted from the handle knob to the nut even when the force exceeds a predetermined force. It is possible to easily eliminate the “knob idle phenomenon”.

  In the present invention, since the first locking means is provided inside the handle knob and the second locking means is provided at the end of the nut, the first locking means and the second locking means are provided. Since the stop means can be easily accessed from an opening provided at the end of the handle knob, it is not necessary to secure a space for setting the engaging means on the outer periphery of the handle knob, and the handle knob can also be designed to be compact.

  In the present invention, the first locking means is constituted by a recess or a hole, the second locking means is also constituted by a recess or a hole, and the first locking means and the second locking that are further constituted by a recess or a hole. If the engaging means for engaging the means is constituted by a lock pin, the torque transmission lock mechanism can be configured with a simple structure, so that the reliability of the torque transmission lock mechanism is improved.

  In particular, when the torque transmission lock mechanism is configured as described above, the lock pin can be easily inserted from the opening provided at the end of the handle knob toward the end of the nut. Without using space, the recess or hole of the first locking means and the recess or hole of the second locking means can be easily engaged from the direction of the rotation axis of the nut.

  Furthermore, since the above torque transmission lock mechanism is provided with the second locking means, it is not necessary to provide an extra axial length for the nut so that it can be accessed from the outer peripheral direction of the nut. In both the torque transmission / cutoff mechanism and the moving device provided with the torque transmission / cutoff mechanism, a compact structure with a reduced axial length can be achieved.

  Specifically, the torque transmission / cutoff mechanism includes a substantially circular torque transmission surface orthogonal to the rotation axis of the handle knob, and is synchronized with the rotation of the handle knob and along the rotation axis of the handle knob. A nut provided with an annular member that is slidably mounted, a substantially circular torque transmission surface that is in contact with the torque transmission surface and orthogonal to the rotation axis of the nut, and a flange having a second locking means; And an elastic body that urges the torque transmission surface of the annular member toward the torque transmission surface of the nut, and the torque transmission surface and the torque transmission surface have a rotational force transmitted to each of them less than a predetermined force. The torque transmission surface and the torque transmission surface are locked to each other, and an inclined surface is provided that causes slippage between the torque transmission surface and the torque transmission surface when the transmitted rotational force exceeds a predetermined force. Including concave or convex It can be constructed by making.

  Further, in order to improve the maintainability of the torque transmission / shut-off mechanism by facilitating replacement of the consumable parts, the torque transmission surface is attached to the nut in a detachable manner so as to synchronize with the rotation of the nut. It is preferable to form on the annular member.

  Also, in order to improve the maintainability of the torque transmission / shut-off mechanism by facilitating the attachment / detachment of the nut to / from the vertical part of the auxiliary frame, the nut is inserted into the opening provided in the vertical part of the auxiliary frame. The outer diameter of the second annular member is larger than the opening, so that when installed, the nut body is inserted into the opening, and the side surface of the vertical portion with which the second annular member abuts. It is preferable that the nut can be rotatably attached to the vertical portion by allowing a flange member having an outer diameter larger than the opening to be connected to the second annular member from the opposite side surface.

  Further, in order to prevent the second annular member and the flange member from being consumed and to smoothly rotate the nut, the vertical portion of the auxiliary frame can be sandwiched between the second annular member and the flange member via a resin washer. preferable.

  In the present invention, in order to reinforce the prevention of the fall of the handrail for the bathtub and the drop-off from the side wall of the bathtub, the leg portion whose end is in contact with the floor surface may be attached to the main body frame. In particular, when the bathtub handrail of the present invention is attached to a bathtub having strength in the inner wall of the bathtub but not in the outer wall other than the rim portion, even if a load is applied in the horizontal direction by the user, Even if eccentricity occurs at the center position of the clamping force, the bathtub handrail can be extremely effectively prevented from tilting or falling. For this reason, even if the inner wall and the outer wall of the bathtub are integrally manufactured, the outer wall may not have sufficient strength if the interior is hollow. The higher safety of the handrail is ensured.

  In the handrail for bathtubs of the present invention, the auxiliary frame includes a horizontal part attached to the mounting part of the main body frame and a vertical part connected to the horizontal part and to which the moving device is attached. It is possible to select the mounting position of the horizontal portion with respect to the placement portion so that the distance between the mounting portion and the contact portion of the main body frame approaches and separates. For example, a plurality of through holes or slits are provided in the mounting portion of the main body frame, and one or a plurality of screw holes are provided in the horizontal portion of the auxiliary frame, whereby the horizontal portion of the auxiliary frame is moved to the mounting portion of the main body frame. It may be possible to fix the screw in a variable mounting position.

  For example, one or a plurality of screw holes are provided in the mounting portion of the main body frame, one or a plurality of screw holes are provided in the horizontal portion of the auxiliary frame, and a plurality of horizontal portions of the main body frame and the auxiliary frame are provided. It is also possible to use a connecting plate provided with through-holes or slits so that the mounting position can be changed with screws.

  In this way, when the auxiliary frame can be mounted on the main body frame in a variable mounting position, the distance between the main frame contact portion and the auxiliary frame pressing portion is made as close as possible according to the thickness of the bathtub side wall. Therefore, the moving distance of the pressing part required for clamping the bathtub side wall can be minimized. As a result, there is an advantage that the moving device for moving the pressing portion forward and backward toward the contact portion can be made compact.

  According to the handrail for bathtub of the present invention, the handrail is provided on the main body frame which can be fixed to the upper surface and the outer wall surface of the bathtub side wall and fixed at the position, and the pressing portion is the auxiliary frame connected to the main body frame. Since the main body frame is disposed on the bathtub side via the, the main body frame does not move with respect to the bath layer side wall even if the pressing portion is moved forward and backward. Therefore, the handrail for bathtubs of the present invention does not cause positional displacement or stress (friction force) between the main body frame and the upper surface of the bathtub side wall even when the pressing portion is pressed against the bathtub side wall, and is extremely stable. Can be attached.

  Further, according to the handrail for bathtub of the present invention, an inclined surface formed so as to gradually reduce the thickness of the corresponding contact portion from the contact surface of the contact portion toward the contact base portion at the lower portion of the contact portion, Since the guide portion having a plurality of steps or a combination of inclined surfaces and steps is provided, the problem that the abutting portion rides on the upper surface of the bathtub side wall at the time of mounting is solved, and the incomplete position of the handrail for the bathtub The mounting in the state can be surely prevented.

It is a whole schematic diagram of the handrail for bathtubs of the present invention. It is an exploded view of the handrail for bathtubs shown by FIG. It is a side view of the handrail for bathtubs shown by FIG. It is sectional drawing which cut off the handrail for bathtubs shown in FIG. 3 along the volt | bolt axis | shaft. It is an exploded view of the main body frame of the handrail for bathtubs shown by FIG. It is the schematic which showed the attachment aspect of the handrail main body to the main body frame of the handrail for bathtubs shown by FIG. It is the perspective view (a) which showed the back surface of the main body frame of the handrail for bathtubs shown by FIG. 1, and the perspective view (b) which showed the front. It is the perspective view (a) which showed the back surface of the main body frame of the aspect different from the main body frame shown by FIG. 7, and the perspective view (b) which showed the front. FIG. 8 is a side view of the main body frame shown in FIG. 7. It is a side view of the main body frame shown by FIG. It is the exploded view which showed the state which decomposed | disassembled the contact part of the main body frame into the contact base, a block (sub block), and an elastic rubber. It is the exploded view which showed the state which decomposed | disassembled the auxiliary | assistant frame of the handrail for bathtubs shown in FIG. 1 into the flame | frame main body, a moving apparatus (a torque transmission and interruption | blocking mechanism and a torque transmission lock mechanism are included), and a press part. It is the schematic which showed the torque transmission lock mechanism in the moving apparatus shown by FIG. 12 by disassembling partially. It is a schematic diagram which shows the state which attached the handrail for bathtubs of this invention to the bathtub side wall of three different shapes which an inner wall has intensity | strength but outer walls (apron) other than a rim | limb part do not have intensity | strength. It is a schematic diagram which shows the state which attached the handrail for bathtubs of this invention to the bathtub side wall of three different shapes in which an inner wall and an outer wall have intensity | strength. It is a schematic diagram which shows the state (a) temporarily mounted to the bathtub side wall, and the state (b) of this mounting | wearing of the handrail for bathtubs of this invention. It is a schematic diagram which shows the state (a) temporarily mounted to the bathtub side wall, and the state (b) which carried out full mounting of the conventional handrail for bathtubs of the type which presses a bathtub side wall from the washroom side.

  Hereinafter, a handrail for bathtubs according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the examples shown below, and various modifications can be made without departing from the technical idea of the present invention.

  The main structure of the handrail 1 for bathtubs which concerns on one Embodiment of this invention is demonstrated using FIG.1 and FIG.2. FIG. 1 shows an overall outline of a handrail 1 for a bathtub according to the present embodiment, and FIG. 2 shows an aspect in which the handrail 1 for a bathtub shown in FIG. 1 is disassembled into main parts. Has been.

  As shown in FIGS. 1 and 2, the basic skeleton of the bathtub handrail 1 is detachably attached to the main body frame 2 via the main body frame 2 placed directly on the side wall of the bathtub and the connecting frame 32. The auxiliary frame 3 is provided. Further, a handrail body 4 for supporting the user's body and a leg portion 5 for preventing the bathtub handrail 1 from being tilted are attached to the main body frame 2. On the other hand, a moving device 8 for moving the pressing portion 6 forward and backward and a side grip 40 for assisting the movement of the user in the bathtub are attached to the auxiliary frame 3. Further, the moving device 8 includes a handle knob 80 for rotating the nut 82 and a cap 800 thereof. A rectangular flat surface is connected to the tip of the bolt 89 that is screwed back and forth by the rotation of the nut 82 via the connecting plate 61. A pair of plate-like pressing portions 6 having the same are attached so as to freely swing.

  Moreover, in the handrail 1 for bathtubs of this embodiment, dangerous parts, such as an uneven | corrugated | grooved part, are reduced by covering the connection frame 32 and a main body frame using the protective covers 33 and 24 which can be attached | detached detachably, ordinarily. In addition to preventing erroneous operation of parts that do not require operation, it is visually improved and clean (see FIG. 2).

  The handrail body 4 includes a ring-shaped upper grip 41 having a substantially rectangular shape in plan view, and a pair of grip support portions 42 connected to the upper grip 41 and provided with a plurality of fixing holes 420. The handrail body 4 can be fixed to an arbitrary height by inserting an insertion pin 280 of the main body frame 2 to be described later into the fixing hole 420 of the grip support portion 42.

  Further, the leg portion 5 is provided with a main leg portion 50 screwed to the main body frame 2 by a screw 53 and a male screw portion screwed with a female screw portion provided inside the main leg portion 50 on the outer peripheral surface. And auxiliary leg portions 51. The length of the leg 5 can be adjusted by rotating the auxiliary leg 51 with respect to the main leg 50.

  FIG. 3 shows a side view of the handrail 1 for a bathtub according to the present embodiment, and FIG. 4 shows a cross-sectional view of the handrail 1 for a bathtub according to the present embodiment cut along a bolt 89. It is shown.

  As shown in FIGS. 3 and 4, the main body frame 2 of the handrail 1 for the bathtub is mounted on the upper surface of the bathtub side wall and the mounting section 20. And an abutting base portion 21 provided with an abutting portion 7 that abuts against one side surface, and has a substantially L-shaped cross-section facing downward as a whole. The auxiliary frame 3 detachably attached to the main body frame 2 is slidably and detachably connected to the mounting portion 20 of the main body frame 2, and is slidably and detachably connected to the connection frame 32. The horizontal part 30 and the vertical part 31 connected with the horizontal part 30 are included, and it has the substantially L-shaped cross-section of the downward direction as a whole. Further, resin rubbers 26 and 27 having elasticity are attached to the inner surface of the mounting portion 20 of the main body frame 2 and the inner surface of the contact base portion 21, and the inner surface of the horizontal portion 30 of the auxiliary frame 3 has elasticity. Since the rubber 34 is attached, the bathtub side wall is prevented from being damaged and slipped (see FIG. 4).

  The nut 82 of the moving device 8 is rotatably attached to the vertical portion 31 of the auxiliary frame 3, and the bathtub in which the abutting portion 7 abuts on the tip of the bolt 89 that is screwed back and forth by the rotation of the nut 82. A pair of pressing portions 6 for pressing the other side surface opposite to the side surface of the side wall is attached via a connecting plate 61 so as to freely swing. Further, the nut 82 is rotated by the handle knob 80 via a torque transmission / interruption means 83 to be described later, and is always turned from the handle knob 80 to the nut 82 in order to eliminate the so-called “handle knob idling phenomenon”. Is provided with a torque transmission lock mechanism 830 (see FIG. 13).

  In the bathtub handrail 1 of the present embodiment, the connection frame 32 is formed with three E-shaped and two U-shaped slits 320 so that the mounting portion 20 of the main body frame 2 and the auxiliary frame 3 are horizontal. The part 30 is provided with screw holes 200 and 300 aligned with the slits 320 of the connecting frame 32 (see FIG. 2). For this reason, the auxiliary frame 3 has the horizontal portion 30 attached to the mounting portion 20 via the connecting frame 32 so that the vertical portion 31 can move closer to and away from the abutting portion 7 and the abutting base portion 21 of the main body frame 2. The position can be arbitrarily selected, and can be screwed to the main body frame 2 with a screw 321.

  Although not shown, by providing a plurality of through-holes or slits in the horizontal portion of the auxiliary frame and providing one or a plurality of screw holes in the mounting portion of the main body frame, the auxiliary frame can be placed horizontally without the connection frame 32. You may enable it to be directly screwed to the mounting portion of the main body frame so that the mounting position is variable.

  Thus, the handrail 1 for bathtubs of this embodiment can be mounted so that the mounting position of the horizontal portion 30 of the auxiliary frame 3 can be changed to the mounting portion 20 of the main body frame 2 via the connection frame 32. Therefore, according to the thickness of the bathtub side wall, the distance between the abutting base 21 and the abutting portion 7 of the main body frame 2 and the vertical portion 31 and the pressing portion 6 of the auxiliary frame 3 should be as close as possible. Since it can do, the movement distance of the press part 6 required in order to clamp a bathtub side wall can be restrained to the required minimum. As a result, the moving device 8 such as a bolt length for moving the pressing portion 6 forward and backward toward the contact portion 7 can be made compact.

  FIG. 16 shows a state (a) in which the handrail 1 for bathtubs of the present embodiment is temporarily attached to the bathtub side wall 9 and a state (b) in which the handrails are permanently attached. Moreover, in FIG. 17, as a comparative example of the bathtub handrail 1 of the present embodiment shown in FIG. 16, a conventional bathtub handrail 1x of a type in which the bathtub side wall 9 is pressed from the washing area side is applied to the bathtub side wall. A temporarily attached state (a) and a fully attached state (b) are shown.

As mentioned above, in the handrail 1 for bathtubs of this embodiment, the handrail main body 4 is attached to the main body frame 2 that can be brought into contact with the upper surface of the bathtub side wall and the outer wall surface and fixed at that position. Since the pressing part 6 is arranged on the bathtub side by the auxiliary frame 3 connected to the main body frame 2 via the connecting frame 32, the main body frame 2 can be used as a side wall of the bath layer even if the pressing part 6 is moved forward and backward. Is immobile. Therefore, as shown in FIGS. 16A and 16B, the handrail 1 for a bathtub according to the present embodiment has the main body frame 2 and the upper surface of the bathtub side wall 9 even if the pressing portion 6 is pressed against the bathtub side wall 9. (For example, the distance L ₀ between the center of the handrail 4 and the center of the bathtub side wall 9 is constant and constant) and can be attached in an extremely stable state. .

  FIG. 5 shows an exploded view of the main body frame 2 of the handrail 1 for a bathtub according to this embodiment shown in FIG. FIG. 6 is a schematic diagram showing an attachment mode of the handrail body 4 to the body frame 2 of the bathtub handrail 1 shown in FIG. 1.

  The main body frame 2 of the present embodiment is provided with a placing portion 20 placed on the upper surface of the bathtub side wall, and a contact portion 7 connected to the placing portion 20 and brought into contact with one side surface of the bathtub side wall. The contact base 21 is provided with a grip support portion receiving portion 22 for slidably receiving a pair of grip support portions 42 of the handrail body 4. ing. Further, the mounting portion 20 is provided with an extending portion 25 extending outward from the grip support portion 42 and a connecting frame 32 connected to the auxiliary frame 3 in the width direction of the mounting portion 20. A screw hole 200 for screwing is provided.

  Resin rubbers 26 and 27 are attached to the inner surface of the mounting portion 20 of the main body frame 2 and the inner surface of the abutting base 21 to prevent damage to the bathtub side wall and to prevent slippage. Attached to the inner surface of 21 is a contact portion 7 for clamping the bathtub side wall from the washing area side, and a guide portion 70 for preventing the contact portion 7 from climbing on the upper surface of the bathtub side wall when attached. It has been.

  In this embodiment, the contact part 7 and the guide part 70 are resin, and are integrally molded so that it may exhibit a substantially T shape in front view. Further, the abutting portion 7 has an abutting portion main body 71, a screw 712 for screwing the abutting portion main body 71 to the abutting base portion 21, and an elasticity that serves as an anti-scratching and anti-slip property to the bathtub side wall. Resin rubber 72 is included. Further, a resin rubber 72 is formed by inserting a through hole 710 for screwing the contact portion main body 71 and a convex portion (not shown) provided on the back surface of the resin rubber 72 into the contact portion main body 71. A rubber fixing hole 711 for detachably fixing is provided.

  As shown in FIG. 6, the contact base portion 21 of the main body frame 2 of the present embodiment has a cylinder for slidably supporting a pair of grip support portions 42 in which a plurality of fixing holes 420 are formed. A shaped grip support housing 22 is provided. Further, between the pair of grip support portion accommodating portions 22, a pair of insertion pins 280, a pair of knobs 282 attached to the rear end portion of the insertion pins 280, and the insertion pins 280 are connected to the grip support portion 42. An inserting / releasing mechanism 28 comprising an urging means 281 that urges toward is provided.

  The insertion pin 280 is removably inserted into at least one of the plurality of fixing holes 420 of the grip support portion 42 through a through hole (not shown) of the grip support portion accommodating portion 22. The helical spring urging means 281 urges the insertion pin 280 from the outside of the through hole of the grip support portion accommodating portion 22 toward the fixing hole 420 of the grip support portion 42. The knob 282 is for the user to apply a force to the biasing means 281 along the direction opposite to the biasing direction of the insertion pin 280 by the biasing means 281.

  As described above, in the bathtub handrail 1 of the present embodiment, the grip support portion 42 of the handrail main body 4 can be adjusted in height to the back surface of the main body frame 2 by the grip support portion accommodating portion 22 and the insertion / release mechanism 28. Fixed. That is, in a state where the insertion pin 280 of the insertion / release mechanism 28 is inserted into at least one of the plurality of fixing holes 420 of the grip support portion 42, the grip support portion 42 is interposed via the insertion pin 280 of the insertion / release mechanism 28. Are connected and fixed to the main body frame 2. On the other hand, when the insertion pin 280 is not inserted into the fixing hole 420 of the grip support portion 42, the grip support portion 42 is not connected and fixed to the main body frame 2.

  The insertion pin 280 is urged by the urging means 281 from the outside of the through hole of the grip support portion accommodation portion 22 toward the fixing hole 420 of the grip support portion 42. Therefore, when the user adjusts the height of the handrail main body 4 and inserts the insertion pin 280 into the fixing hole 420 of the grip support portion 42 in order to fix the height of the handrail main body 4, the grip support portion 42 is moved. There is no need to apply a force to the insertion pin 280 or to screw the insertion pin 280 while supporting it. Further, the user can operate the knob 282 to apply force to the biasing means 281 along the direction opposite to the biasing direction of the insertion pin 280 by the biasing means 281, so that the insertion pin 280 can be gripped. It can be easily removed from the fixing hole 420 of the support portion 42.

  The handrail 1 for bathtubs of this embodiment can adjust the height of the handrail main body 4 easily and safely by employ | adopting the above-mentioned structure in the fixing means of the grip support part 42. FIG.

  Moreover, the handrail 1 for bathtubs of this embodiment is screwed to the outer peripheral surface of the reduced diameter part 23 and the reduced diameter part 23 for fixing the grip support part 42 in the grip support part accommodating part 22 without rattling. The nut 230 is provided.

  The reduced diameter portion 23 is a slit provided at the uppermost portion of the grip support portion accommodating portion 22. Further, a thread (thread groove) is provided on the outer peripheral surface of the reduced diameter portion 23, and the outer peripheral surface is tapered so that the outer diameter gradually increases from the upper side to the lower side. For this reason, when the nut 230 is attached to the thread (screw groove) of the reduced diameter portion 23 and the nut 230 is rotated so as to be screwed downward, the reduced diameter portion 23 is reduced in diameter by the nut 230. The portion 42 can be tightened into the grip support portion receiving portion 22 so as not to rattle.

  Thus, the handrail 1 for bathtubs of this embodiment employ | adopts the above-mentioned structure in the uppermost part of the grip support part accommodating part 22, Therefore The grip support part 42 accommodated in the grip support part accommodating part 22 is used. It can fix firmly and can prevent the backlash of the grip support part 42 more effectively.

  In the handrail 1 for a bathtub according to the present embodiment, the mounting portion 20 mounted on the upper surface of the bathtub side wall extends in the width direction of the mounting portion 20 toward the outside from the grip support portion 42. 25, even if a force is applied to the upper grip 41 of the handrail body 4 in the horizontal direction along the longitudinal direction of the bathtub side wall, the extension portion 25 comes into contact with the upper surface of the bathtub side wall. Since the rotational moment acting on the sliding main body 4 is supported, it is possible to strongly prevent the bathtub handrail 1 from rotating or toppling over in the longitudinal direction of the bathtub side wall on the bathtub side wall upper surface. In addition, in the handrail 1 for bathtubs of this embodiment, even if force is applied to the upper grip 41 in the horizontal direction along the thickness direction of the bathtub side wall, the clamp mechanism including the contact portion 7 and the pressing portion 6 is The handrail 1 serves to strongly prevent the handrail 1 from rotating or falling in the thickness direction of the bathtub side wall.

  More specifically, the horizontal force applied to the upper grip 41 of the handrail main body 4 along the longitudinal direction of the bathtub side wall is applied to the mounting portion 20 via the grip support portion 42 connected to the upper grip 41. Since it is transmitted, the handrail main body 4 has a force that rotates or falls in the longitudinal direction of the bathtub side wall with the grip support portion 42 and the mounting portion 20 as the center. However, since the mounting portion 20 of the main body frame 2 is provided with an extending portion 25 extending further outward from the attachment portion between the grip support portion 42 and the mounting portion 20, the handrail main body 4 is moved to. The arm in which the extension part 25 is supported on the upper surface of the bathtub side wall even when a force is applied to rotate or toppling the grip wall in the longitudinal direction of the bathtub side wall with the grip support part 42 and the mounting part 20 as the center. Thus, the handrail body 4 can be strongly prevented from rotating.

  In other words, the handrail 1 for a bathtub of the present embodiment extends further outward from the attachment portion between the grip support portion 42 and the placement portion 20 in the width direction of the placement portion 20 of the main body frame 2. Since the extension part 25 is provided, the center of rotation of the handrail body 4 when a force is applied in the horizontal direction along the longitudinal direction of the bathtub side wall is substantially the grip support part 42 and the mounting part 20. It moves to the edge part of the extension part 25 provided in the mounting part 20 from the attachment part. Therefore, in order to rotate the handrail main body 4, it is not sufficient to apply only a horizontal force to the upper grip 41, and the mounting portion between the grip support portion 42 and the placement portion 20 is lifted more than in the horizontal direction. It is necessary to apply an upward force. For this reason, in the handrail 1 for a bathtub according to the present embodiment having the extending portion 25 extending outward from the grip support portion 42, the grip support portion 42 is attached to the end portion of the placement portion 20. Compared with the handrail 1 for bathtubs which does not have the extension part 25, it has a structure which is hard to rotate or fall on the bathtub side wall upper surface.

  FIG. 7 shows a perspective view (a) showing the back surface of the main body frame 2 of the handrail 1 for bathtubs shown in FIG. 1 and a perspective view (b) showing the front surface. FIG. 8 shows a perspective view (a) representing the back surface and a perspective view (b) representing the front surface of the main body frame 2a different from the main body frame 2 shown in FIG. 9 shows a side view of the main body frame 2 shown in FIG. 7, and FIG. 10 shows a side view of the main body frame 2a shown in FIG.

  As described above, the extension portion 25 only needs to extend outward from the grip support portion 42 in the width direction of the placement portion 20, so the width of the placement portion 20 in which the extension portion 25 is formed. The dimensions are not required to be related to the width of the contact portion 7 or the length of the contact base 21 of the main body frame 2.

  For this reason, in this embodiment, the width dimension of the mounting part 20 provided with the extending part 25 is the width dimension of the contact part 7 and the contact part as shown in FIGS. 7 (a) and 7 (b), for example. The width dimension of a part of the base portion 21 may be the same. Further, as shown in FIG. 11 described later, the width dimension of the mounting part 20b provided with the extending part 25b may be the same as the width dimension of the contact part 7a and the width dimension of the contact base part 21b. Furthermore, the width dimension of the mounting part 20a provided with the extending part 25a is the same as the width dimension of the contact part 7 as shown in FIGS. 8A and 8B, for example. It may be longer than the width dimension of the base 21a. In the main body frame 2 a shown in FIGS. 8A and 8B, only the width dimension of the mounting portion 20 a provided with the extending portion 25 a is longer than the width dimension of the contact base portion 21.

  Thus, the width dimension of the mounting part having the extension part is the same as the width dimension of the contact part or the contact base part. It is not necessary to be the same as the entire width dimension, and it may be the same as the width dimension of all (FIG. 11) or a part (FIG. 7) of the abutting part and the abutting base part. In particular, if the width dimension of the placement part having the extension part is the same as the width dimension of all or a part of the contact part, the contact part does not depend on the width dimension and is contacted by the placement part. Since the entire width of the portion can be supported or brought into contact, the abutting portion can be fixed to the main body frame without causing play between the abutting portion and the mounting portion (FIGS. 7 and 11). reference).

  The extension portions 25, 25a, 25b are preferably provided in the end regions of the placement portions 20, 20a, 20b within a distance of 10 cm from the contact surface of the contact portions 7, 7a. The distance between the contact portions 7 and 7a from the contact surface is within the end region of the placement portions 20, 20a and 20b within 5 cm.

  In the present embodiment, the main body frame 2 is fixed at that position by placing the placement parts 20, 20a, 20b on the upper surface of the bathtub side wall and bringing the contact parts 7, 7a into contact with the side surfaces of the bathtub side wall. Therefore, the extending portions 25, 25a, 25b provided on the placement portions 20, 20a, 20b are disposed within a certain distance from the contact surfaces of the contact portions 7, 7a. For this reason, in this embodiment, if it is going to arrange | position the extension parts 25, 25a, and 25b to the upper surface of a bathtub side wall with the exact and minimum required magnitude | size, the extension parts 25, 25a, and 25b will be contact | abutting part 7. , 7a is preferably provided in the end region of the mounting portions 20, 20a, 20b within a distance of 10 cm, and the distance between the contact surfaces of the contact portions 7, 7a is within 5 cm. It is more preferable to provide in the edge part area | region of mounting part 20, 20a, 20b.

  The handrail 1 for bathtub of this embodiment is provided in the main body frames 2, 2a, 2b, and the thickness of a partial region of the contact portions 7, 7a that contacts the outer wall of the bathtub is thicker than the thickness of the remaining region. The inner wall of the bathtub can be changed to be thinner or thinner (Fig. 11), thicker or thinner (Figs. Both the outer wall and the outer wall can be attached even if the inner wall of the bathtub has strength but the outer wall other than the rim portion does not have strength.

  Furthermore, in the handrail 1 for bathtubs of this embodiment, the contact part 7 attached to the contact base parts 21 and 21a of the main body frames 2 and 2a is in contact with the contact part 7 below the corresponding contact part 7. An inclined surface 700 formed so as to gradually reduce the thickness of the corresponding contact portion 7 from the surface toward the contact base portions 21 and 21a, a plurality of steps 701a or a guide portion 70 and 70a having a combination of the inclined surface 700 and the step 701. Is provided.

  Since the handrail 1 for bathtubs of the present embodiment basically has a substantially U-shaped shape downward, it is temporarily placed so as to cover from the upper side to the lower side of the bathtub side wall at the time of attachment. . For this reason, if the handrail 1 for bathtubs is provided with the contact part 7 which protruded from the contact base part of the main body frame 2 and 2a in order to adapt to the level | step difference etc. of the outer wall of a bathtub, the corresponding contact part 7 at the time of attachment. Gets on the upper surface of the bathtub side wall, and there is a risk that it is attached in an incomplete position and state.

  However, in the present embodiment, the inclined surface 700 formed so as to gradually reduce the thickness of the corresponding contact portion 7 from the contact surface of the contact portion 7 toward the contact base portions 21 and 21a at the lower portion of the contact portion 7. Since the guide portions 70 and 70a having a plurality of steps 701a or a combination of the inclined surface 700 and the step 701 are provided, the problem that the abutting portion 7 rides on the upper surface of the bathtub side wall at the time of mounting is solved. Thus, it is possible to reliably prevent the bathtub handrail 1 from being attached in an incomplete position and state.

  As described above, the guide portions 70 and 70a are provided at the lower portion of the contact portion 7 to prevent the contact portion 7 from riding on the upper surface of the bathtub side wall at the time of mounting. The width dimension of the contact part 7 is not necessarily the same as the width dimension of the contact part 7, and may be shorter or longer than the width dimension of the contact part 7. However, as shown in FIGS. 7B and 8B, if the lateral width of the guide portions 70 and 70a is shorter than the lateral width of the abutment portion 7, the guide portions 70 and 70a are made even more. It can be made compact, and it can also be prevented that the guide portions 70 and 70a are mistakenly used for the contact portion 7 both visually and functionally.

  The inclined surface 700 provided in the guide portion 70 has a gradient so that the thickness of the contact portion 7 gradually decreases from the contact surface of the contact portion 7 that is separated from the contact base portion 21 toward the contact base portion 21. If it does, it does not need to be continuously formed with the contact surface of the contact part 7 or the surface of the contact base part 21, and as shown in FIG. 9, the contact surface of the contact part 7 Alternatively, the contact base 21 may be connected via a step 701 from the surface of the contact base 21.

  In addition, when the steps 701, 701a are provided in the guide portions 70, 70a, generally, the edge of the upper surface of the bathtub side wall is often provided with an R (R) having a predetermined radius. If the depth in the horizontal direction is smaller than R (R) at the edge of the upper surface of the bathtub side wall, the abutment portion 7 does not ride on the upper surface of the bathtub side wall during installation. For this reason, it is preferable that the level | step difference 701,701a of the guide parts 70,70a sets the horizontal depth of the level | step difference 701,701a to 1 mm or more and 12 mm or less, and is set to 1 mm or more and 6 mm or less in this embodiment. Further, the steps 701 and 701a may be combined with a plurality of steps as shown in FIG. 8, or may be combined with the above-described inclined surface 700 as shown in FIG.

  FIG. 11 shows a state in which the contact portion 7a of the main body frame 2 is disassembled into a contact base portion 21b, blocks (sub blocks) 74a to 74c, 75a to 75c, and elastic rubbers 72a to 72c.

  The contact portion 7a of the present embodiment is elastic on the surface of the contact base portion 21b and the surfaces of the blocks (sub blocks) 74a to 74c and 75a to 75c for the purpose of improving grip force by preventing slipping and preventing damage to the bathtub side wall. The rubbers 72a to 72c can be detachably attached. Further, the elastic rubbers 72a to 72c are formed on the surfaces of the blocks (sub-blocks) 74a to 74c, 75a to 75c and the contact base portion 21b with the circular protrusions 720 provided on the back surfaces of the elastic rubbers 72a to 72c. Are detachably attached by being fitted into the recesses 740, 750 and 210.

  For example, when the thickness of the partial region of the contact portion 7a is increased or decreased, the contact portion 7a can be attached to and detached from the contact base portion 21b and the contact base portion 21b of the main body frame 2b and has a predetermined thickness. And the sub-blocks 74a to 74c and 75a to 75c having a smaller area than the contact surface of the contact base 21b. That is, in this embodiment, by attaching the blocks (sub-blocks) 74a to 74c and 75a to 75c to the upper region or the lower region of the contact base portion 21b, the thickness of a partial region of the contact portion 7a is set to the remaining region. It can be made thicker or thinner than the thickness.

  In the present embodiment, the blocks 74a to 74c and 75a to 75c are composed of a plurality of sub blocks 74a to 74c and 75a to 75c so as to divide the entire contact surface of the contact base portion 21b in the vertical direction. Therefore, out of the plurality of blocks (sub-blocks) 74a to 74c and 75a to 75c having an area smaller than the contact surface of the contact base 21b, all the blocks (sub-blocks) 74a to 74c and 75a to 75c are uniformly distributed. If the thickness of the entire area of the contact portion 7a can be changed by mounting (or removing), the upper portion of the contact portion 7a can be removed by removing the lower blocks (sub blocks) 74a, 74b, 75a and / or 75b. The thickness of the region (the portion of blocks 74c and 75c) is the same as the thickness of the lower region (blocks 74a, 74b, 75a and / or 75b). It is also possible to thickening than minute). Further, by removing the upper block block 74c and / or 75c, the thickness of the lower region of the contact portion 7a can be made thicker than the thickness of the upper region.

  As is well understood with reference to FIG. 11, the contact portion 7a of the present embodiment is divided into three blocks (sub-blocks) 74a to 74c and 75a to 75c having different widths in the vertical direction. ing. For this reason, the handrail 1 for bathtubs of this embodiment has the level | step difference of various shapes from which the bathtub side walls 9a and 9b differ in a width | variety (height) to an up-down direction, as FIG.14 and FIG.15 shows. In this case, if the contact portion 7 can be brought into contact with the step shape (see FIGS. 15A to 15C), the contact portion 7 is made to contact locally according to the step shape. (See FIGS. 14A to 14C).

  Thus, in the handrail 1 for bathtubs of this embodiment, the block (sub block) 74a-74c, 75a-75c of the contact part 7a is another block (sub block) which has the same or different magnitude | size and thickness. 74a to 74c, 75a to 75c are replaced, or already installed blocks (sub blocks) 74a to 74c, 75a to 75c, and another block (sub block) 74a having the same or different size and thickness. By attaching ~ 74c, 75a ~ 75c, the thickness of the entire area of the contact part 7a is changed, or the thickness of the partial area of the contact part 7a is made thicker or thinner than the thickness of the remaining area. be able to. In this embodiment, for example, as shown in FIGS. 7 to 10, the block (sub-block) is fixed or integrally formed in the upper region or the lower region of the contact bases 21 and 21 a in advance, thereby forming the contact portion 21. , 21a may be prepared with a handrail for a bathtub in which the thickness of a partial region is previously thicker or thinner than the thickness of the remaining region.

  In the present embodiment, the blocks 74a to 74c and 75a to 75c are composed of sub-blocks 74a to 74c and 75a to 75c having the same or different sizes and thicknesses, which are detachably stacked. For this reason, in the present embodiment, by changing the number of blocks (sub blocks) 74a to 74c and 75a to 75c and the combination of the blocks (sub blocks) 74a to 74c and 75a to 75c to be stacked, The entire region or a partial region can be changed to various thicknesses. As a result, the handrail 1 for a bathtub according to the present embodiment has a contact portion 7a even when the bathtub side walls 9a and 9b have various uneven steps as shown in FIGS. Can be brought into contact with the unevenness of the step and brought into contact with the unevenness of the step. Further, the abutting portion 7a can be brought into contact with the entire outer wall by following the unevenness of the step. In addition, if a block (subblock) is comprised as thin plate-shaped components like the subblocks 74a-74c, the thickness of the contact part 7a can be adjusted more finely.

  In the present embodiment, the blocks (sub-blocks) 74a to 74c, 75a to 75c are connected to the contact base 21b of the main body frame 2b, and the blocks (sub-blocks) 74a to 74c, 75a to 75c and other blocks (sub-blocks). 74a to 74c and 75a to 75c are connected to the contact base 21b and / or the blocks (sub-blocks) 74a to 74c and 75a to 75c by providing circular projections 73 on the surface, although not shown, ) 74a to 74c, 75a to 75c are provided with recesses to be fitted to the protrusions 73 on the back surface, and the recesses of the blocks (sub blocks) 74a to 74c and 75a to 75c are connected to the contact base 21b or other blocks (sub blocks). ) 74a to 74c, and 75a to 75c. In addition, the recessed part may have not only the opening part which accommodates the convex part 73 substantially completely but a structure which partially surrounds the convex part 73 from the circumference | surroundings, for example with a some short protrusion.

  In the present embodiment, the contact base 21b and / or the protrusions 73 provided on the surfaces of the blocks (sub blocks) 74a to 74c and 75a to 75c and the back surfaces of the blocks (sub blocks) 74a to 74c and 75a to 75c are provided. A plurality of recesses are arranged. Although not shown, the convex portion 73 and the concave portion are provided with the concave portion on the surface of the contact base 21b and / or the blocks (sub blocks) 74a to 74c and 75a to 75c, contrary to the above-described configuration. You may provide in the back surface of block (subblock) 74a-74c, 75a-75c. In this embodiment, each block (sub block) 74a to 74c, 75a to 75c is formed with holes or elongated holes 741 and 751 for screwing, and each block (sub block) 74a to 74c, The screws 75a to 75c are screwed to the screw holes 211 of the abutting base 21b using screws 76 for the purpose of completely preventing displacement and dropping. For this reason, the holes or long holes 741 and 751 provided in the blocks (sub-blocks) 74a to 74c and 75a to 75c are convex downward so as to allow passage of the body of the screw 76 but not the head. A two-stage opening having a shaped cross section is formed.

  As described above, in this embodiment, the blocks (sub-blocks) 74a to 74c, 75a to 75c are connected to the contact base 21b, and the blocks (sub-blocks) 74a to 74c, 75a to 75c and other blocks (sub-blocks). Since the connection with 74a-74c and 75a-75c uses the fitting structure by the circular convex part 73 and recessed part which cannot be physically moved to the direction orthogonal to a fitting direction, for example to the handrail main body 4 Even if a lateral force that causes tilting is applied, the blocks (sub-blocks) 74a to 74c, 75a to 75c and the contact base 21b and the blocks (sub-blocks) 74a to 74c, 75a to 75c No positional deviation occurs between the other blocks (sub-blocks) 74a to 74c and 75a to 75c.

  FIG. 14 shows a state in which the handrail 1 for a bathtub according to the present embodiment is attached to three differently shaped bathtub side walls 9a in which the apron 91a other than the rim portion 90a has strength while the inner wall has strength. Has been. In the bathtub side wall 9a of FIG. 14A, the rim portion 90a is deeper than the apron 91a, and in the bathtub side wall 9a of FIG. 14B, the rim portion 90a is substantially flush with the apron 91a. The bathtub side wall 9a of (c) has the shape where the rim | limb part 90a is on a business trip rather than the apron 91a. Moreover, the state which attached the handrail 1 for bathtubs of this embodiment to the bathtub side wall 9b of three different shapes in which an inner wall and an outer wall have intensity | strength is shown by FIG. In the bathtub side wall 9b of FIG. 15A, the rim portion 90b is deeper than the outer wall 91b other than the rim portion 90b, and in the bathtub side wall 9b of FIG. 15B, the rim portion 90b is separated from the outer wall 91b other than the rim portion 90b. The bathtub side wall 9b shown in FIG. 15C has a shape in which the rim portion 90b is on a business trip than the outer wall 91b other than the rim portion 90b.

  As shown in FIGS. 14 and 15, the handrail 1 for a bathtub according to the present embodiment is such that the abutment portion 7 of the main body frame 2 that abuts the outer wall of the bathtub has a thickness in a partial region that is greater than the thickness of the remaining region. Can be made thicker or thinner, in principle, the shape and type of the bathtub is not selected, and the inner wall of the bathtub is not limited to the inner wall and outer wall of the bathtub (FIG. 15). Even if it is a bathtub (FIG. 14) which has intensity | strength but outer walls other than the rim | limb part 90a do not have intensity | strength, it can be attached.

  Specifically, as shown in FIGS. 15A to 15C, the outer wall of the bathtub includes a case where there is a step near the rim portion 90 b and has a strength. The handrail for bathtub 1 adjusts the pressing force (reaction force) of the abutting portion 7 by adjusting the thickness of a part of the abutting portion 7 so as to follow the shape of the wall surface. It can disperse | distribute to the whole contact surface so that it may oppose in a symmetrical position. For this reason, the handrail 1 for bathtubs of the present embodiment can form a balanced clamped state inside and outside the bathtub side wall 9b without causing a rotational moment in the handrail 1 for bathtubs. Further, when the pressing force (reaction force) of the contact portion 7 is dispersed, the pressing force (reaction force) per unit area is also reduced, so that the risk of damaging the bathtub side wall 9b is reduced and the handrail for the bathtub The strength range (application range) of the bathtub side wall 9b in which the attachment of 1 is permitted is also expanded.

  As shown in FIGS. 15 (a) to 15 (c), even if the inner wall and the outer wall of the bathtub are integrally manufactured, the outer wall has sufficient strength when the inside is hollow. In that case, if the leg 5 shown in FIGS. 1 and 2 is attached to the main body frame 2, the bathtub handrail 1 can be effectively prevented from falling over or falling off the bathtub side wall. The higher safety of the handrail 1 for a bathtub is ensured.

  In addition, as shown in FIGS. 14A to 14C, the outer wall of the bathtub includes a case where there is a step near the rim portion 90a and has an outer wall having no strength other than the rim portion 90a. The handrail 1 for bathtub of this embodiment concentrates so that the pressing force (reaction force) of the contact part 7 can be applied only to the rim part 90a of the bathtub outer wall by adjusting the thickness of a part of the contact part 7. Can be made. For this reason, the handrail 1 for bathtubs of the present embodiment can be firmly attached to a bathtub whose outer wall other than the rim portion 90a does not have strength, and the apron which does not have strength other than the rim portion 90a. It is also possible to prevent damage to 91a.

  Moreover, in the handrail 1 for bathtubs of this embodiment, when the outer wall (apron 91a) other than the rim | limb part 90a has intensity | strength, the bathtub inner wall as mentioned above has intensity | strength, the handrail for bathtubs In order to prevent 1 from falling or falling off from the bathtub side wall 9a, the leg 5 with which the rubber leg 52 at the end abuts against the floor surface as shown in FIGS. 2 is preferably attached. In this case, even if a load is applied in the lateral direction by the user or the center position of the clamping force inside and outside the bathtub is decentered, the bathtub handrail 1 is extremely effectively prevented from tilting or falling. can do.

  In recent years, unit baths are constructed as a rim part that has the strength that the upper part of the outer wall of the bathtub is continuous with the inner wall in consideration of design and maintenance, and the lower part of the rim part is constructed as a removable apron that has no strength. There are many. For this reason, when the thickness of the upper region of the contact portion 7 of the main body frame 2 is made thicker or thinner than the thickness of the lower region, in many cases, the upper portion of the outer wall of the bathtub (the connecting portion between the rim portion and the apron). Therefore, the bathtub handrail 1 of the present invention can be applied to almost any type of unit bath.

  12, the auxiliary frame 3 of the bathtub handrail 1 shown in FIG. 1 is disassembled into the frame body 3, the moving device 8 (including the torque transmission / cutoff mechanism 83 and the torque transmission lock mechanism 830), and the pressing portion 6. An overview of the state is shown.

  As shown in FIG. 12, in the bathtub handrail 1 of this embodiment, the pressing portion 6 includes a pair of pressing main bodies 60 and a pair of resin rubbers 63, and the resin rubber 63 is a resin rubber. The circular convex portion 630 provided on the back surface of 63 is fitted into the circular concave portion 600 of the pressing body 60 to be mounted. The pair of pressing main bodies 60 are attached to the connecting plate 61 by inserting the mounting block 62 into the insertion holes 601 of the pressing main body 60 and the mounting holes 611 of the connecting plate 61 and screwing with screws 620 from the opposite side. It is done.

  Further, the connecting plate 61 is provided with a fixing hole 610 that fits with the tip end portion of the bolt 89. The tip end portion of the bolt 89 is inserted into the fixing hole 610 of the connecting plate 61, and the screw from the side where the tip end portion is exposed. By fastening with screws 890, the connecting plate 61 of the pressing portion 6 is attached to the tip portion of the bolt 89. In the present embodiment, play is provided in the portion where the pressing body 60 is attached to the connecting plate 61 and the portion where the connecting plate 61 is attached to the tip end portion of the bolt 89. The connecting plate 61 can swing with respect to the tip end portion of the bolt 89. For this reason, the press part 6 of this embodiment can be made to contact | abut reliably also to the bathtub side wall which has a curved surface.

  In the handrail 1 for bathtubs of this embodiment, the moving device 8 for moving the pressing portion 6 forward and backward toward the contact portion 7 is a nut 82 that is rotatably attached to the vertical portion 31 of the auxiliary frame 3. And a handle knob 80 for rotating the nut 82, and a bolt 89 whose tip is connected to the pressing portion 6 and screwed into the nut 82. A torque transmission / cut-off mechanism 83 is included that transmits the rotational force from the knob 80 to the nut 82, and interrupts the transmission of the rotational force from the handle knob 80 to the nut 82 above a predetermined force.

  In the present embodiment, since the moving device 8 is constituted by the nut 82 and the bolt 89, the pressing portion 6 can be easily moved closer to or away from the abutting portion 7 by the screw 89 moving forward and backward. The state can also be reliably maintained. Further, in this embodiment, the nut 82 is rotatably attached to the vertical portion 31 of the auxiliary frame 3, and the nut 89 is rotated by the handle knob 80 to thereby rotate the bolt 89 and the pressing portion 6 attached to the tip thereof. Therefore, the position of the handle knob 80 does not change with respect to the vertical portion 31. As a result, in this embodiment, since it can suppress that the handle knob 80 protrudes from the handrail 1 for bathtubs, it is safe for a user.

  Further, since the moving device 8 of the present embodiment includes the torque transmission / interruption mechanism 83, even if the user turns the handle knob 80 and pushes the pressing portion 6 toward the contact portion 7, the bathtub side wall is damaged. Without doing so, the handrail 1 for the bathtub of the present embodiment is required and can be attached to the bathtub side wall with a sufficient pressing force (clamping force). Even if the torque transmission / interruption means 83 is provided on the moving device 8 of the pressing portion 6, the position of the handle knob 80 does not change with respect to the vertical portion 31 of the auxiliary frame 3.

  FIG. 13 shows an outline of the torque transmission lock mechanism 830 in the moving device 8 of the present embodiment shown in FIG. 12 by partially disassembling.

  In the handrail 1 for bathtubs of this embodiment, since the moving device 8 has the nut and bolt structure as described above, the torque transmission / interruption mechanism 83 is provided with the first provided inside the handle knob 80. By connecting the locking means 801 and the second locking means 821 provided at the end of the nut 82 by the engaging means 831, the rotational force is always transmitted from the handle knob 80 to the nut 82 even when a predetermined force is exceeded. A torque transmission lock mechanism 830 that enables transmission is provided.

  When the moving device 8 includes the torque transmission / interruption mechanism 830 described above, the handle 82 is moved forward by locking the rotation of the nut 82 when the pressing portion 6 is retracted excessively. Even if the knob 80 is rotated forward, the turning force is not transmitted to the nut 82, which may cause a so-called “spinning phenomenon of the handle knob 80”. Therefore, when the torque transmission / shut-off mechanism 83 includes the torque transmission lock mechanism 830 as described above as in the present embodiment, the first locking means 801 and the nut 82 provided inside the handle knob 80 are provided. Since the second locking means 821 provided at the end of the handle can be easily connected by the engaging means 831, it is possible to always transmit the rotational force from the handle knob 80 to the nut 82 even when a predetermined force is exceeded. As a result, it is possible to easily eliminate the above-mentioned “rotating phenomenon of the handle knob 80”.

  As shown well in FIG. 13, in this embodiment, the first locking means 801 is provided inside the handle knob 80, and the second locking means 821 is provided at the end of the nut 82. Therefore, the first locking means 801 and the second locking means 821 can be easily accessed from the opening provided at the end of the handle knob 80 by removing the cap 800. It is not necessary to secure a space for setting the engaging means in the portion, and the handle knob 80 can be designed compactly.

  In the present embodiment, the first locking means 801 is constituted by a recess formed between the protrusions, and the second locking means 821 is constituted by a recess made of a notch provided at the end of the nut 82. Further, when the engaging means 831 for engaging the first locking means 801 and the second locking means 821 is constituted by a lock pin, the torque transmission lock mechanism 830 can be configured with a simple structure. Therefore, the reliability of the torque transmission lock mechanism 830 is improved.

  In particular, when the torque transmission lock mechanism 830 is configured as described above, the lock pin 831 can be easily inserted from the opening provided at the end of the handle knob 80 toward the end of the nut 82. By using the lock pin 831, the recess 801 of the first locking means and the recess 821 of the second locking means can be easily engaged from the rotation axis direction of the nut 82 without using the outer peripheral space of the handle knob 80. Can do.

  Further, since the torque transmission lock mechanism 830 of the present embodiment does not need to be provided with an extra axial length in the nut 82 so as to be accessible from the outer peripheral direction of the nut 82 in order to provide the second locking means 821, Both the torque transmission / cutoff mechanism 83 provided with the transmission lock mechanism 830 and the moving device 8 provided with the torque transmission / cutoff mechanism 83 can have a compact structure with a reduced axial length.

  Specifically, the torque transmission / shut-off mechanism 83 includes a substantially circular torque transmission surface 840 orthogonal to the rotation axis of the handle knob 80, and synchronizes with the rotation of the handle knob 80 and An annular member 84 that is slidably mounted along the rotation axis, a substantially circular torque transmission surface 850 that contacts the torque transmission surface 840 and is orthogonal to the rotation axis of the nut 82, and second locking means 821. And a biasing means 86 for biasing the torque transmission surface 840 of the annular member 84 toward the torque transmission surface 850 of the nut 82, and the torque transmission surface 840 and The torque transmission surface 850 interlocks and transmits the torque transmission surface 840 and the torque transmission surface 850 when the rotational force transmitted to each is less than a predetermined force. Power is at least a predetermined force is constituted by including a concave or convex portion having an inclined surface causing slippage between the torque transmitting surface 840 and the torque Den receiving faces 850.

  The center of the torque transmission surface 840 and the center of the torque transmission surface 850 of the torque transmission / shut-off mechanism 83 are arranged coaxially with the rotation shafts of the handle knob 80 and the nut 82. On the torque transmission surface 840 and the torque transmission surface 850, a concave / convex portion including a slope inclined from the torque transmission surface 840 or the torque transmission surface 850 is formed. The inclined surface of the torque transmission surface 840 and the inclined surface of the torque transmission surface 850 are inclined so as to ascend the opposing inclined surfaces facing each other when the handle knob 80 is rotated so as to push the pressing portion 6 into the bathtub side wall. It has been.

  The annular member 84 having the torque transmission surface 840 is mounted so as to be slidable along the rotation shafts of the handle knob 80 and the nut 82, and is attached to the torque transmission surface 850 by an elastic biasing means 86. It is energized. The biasing means 86 is not particularly limited as long as it can be elastically deformed, such as a coil spring, a disc spring, or an elastic resin material, and a known one can be used.

  For this reason, a constant frictional force is always generated between the inclined surface of the torque transmission surface 840 and the inclined surface of the torque transmission surface 850. When the torque transmitted from the handle knob 80 to the nut 82 is less than a predetermined value, the inclined surface of the torque transmitting surface 840 cannot get over the inclined surface of the torque transmitting surface 850, and is engaged in a state of being engaged with each other. Match. As a result of this engagement, the torque of the handle knob 80 is transmitted to the nut 82, and the bolt 89 screwed with the nut 82 presses the pressing portion 6 attached to the auxiliary frame 3 toward the bathtub side wall.

  On the other hand, when the torque transmitted from the handle knob 80 to the nut 82 exceeds a predetermined value, the inclined surface of the torque transmitting surface 840 slips between the inclined surface of the torque transmitting surface 850. As a result, the annular member 84 having the torque transmission surface 840 moves backward against the biasing means 86, and the inclined surface of the torque transmission surface 840 gets over the inclined surface of the torque transmission surface 850, thereby engaging the both. Canceled. For this reason, even if the handle knob 80 is rotated in this state, the handle knob 80 only rotates idly with respect to the nut 82, and torque is not transmitted from the handle knob 80 to the nut 82.

  In addition, a vertical surface substantially orthogonal to the torque transmission surface 840 is formed at the rear end of the inclined surface of the torque transmission surface 840, and the torque transmission surface 850 is approximately at the rear end of the inclined surface of the torque transmission surface 850. An orthogonal vertical plane is formed. The vertical surface of the torque transmission surface 840 and the vertical surface of the torque transmission surface 850 are brought into contact with and engaged with each other when the handle knob 80 is rotated so as to separate the pressing portion 6 of the auxiliary frame 3 from the side wall of the bathtub. Therefore, when the handle knob 80 is rotated so as to separate the pressing portion 6 from the side wall of the bathtub, the handle knob 80 and the nut 82 always rotate in synchronism regardless of the magnitude of the transmitted torque.

  Thus, in the torque transmission / cutoff mechanism 83, the torque transmission / reception surface 850 that rotates in synchronization with the rotation of the nut 82 is attached to the outer peripheral surface of the nut 82. For this reason, the torque transmission / interruption mechanism 83 can be partially overlapped with the nut 82 main body. Therefore, the torque transmission / interruption mechanism 83 and the auxiliary frame of the handle knob 80 including the torque transmission / interruption mechanism 83 are provided. The protrusion length from 3 can be suppressed.

  In this embodiment, the torque transmission surface 850 is synchronized with the rotation of the nut 82 in order to improve the maintainability of the torque transmission / cutoff mechanism 83 by facilitating replacement of consumable parts. It is formed on a second annular member 85 that is detachably mounted.

  In addition, the nut 82 is provided on the vertical portion 31 of the auxiliary frame 3 in order to improve the maintainability of the torque transmission / cutoff mechanism 83 by facilitating the attachment / detachment of the nut 82 to / from the vertical portion 31 of the auxiliary frame 3. By providing a body portion 822 that is inserted into the opening 310, and the outer diameter of the second annular member 85 is larger than that of the opening 310, the body portion 822 of the nut 82 is inserted into the opening 310 when mounted, The flange member 88 having a larger outer diameter than the opening 310 and the cover 880 are connected to the second annular member 85 by a screw 881 from the side surface opposite to the side surface of the vertical portion 31 with which the second annular member 85 abuts. Thus, the nut 82 can be rotatably attached to the vertical portion 31.

  Further, in order to prevent the second annular member 85 and the flange member 88 from being worn and to smoothly rotate the nut 82, the vertical portion 31 of the auxiliary frame 3 is connected to the second annular member 85 via a resin washer 87. And the flange member 88.

  Furthermore, in the present embodiment, an end portion of the body portion of the handle knob 80 is provided with an enlarged diameter portion 802 that is larger in diameter than the body portion. The handle knob 80 is rotated in synchronism with the annular member 84 having the torque transmission surface 840, and the inner handle fixing cover 810 having an inner diameter smaller than the enlarged diameter portion 802 and the handle so as not to be detached from the nut 82. A fixed cover 81 is rotatably attached to the vertical portion 31 of the auxiliary frame 3.

1,1x ... Handrail for bathtub 2,2a, 2b ... Main body frame 20,20a, 20b ... Place 200 ... Screw hole 21,21a, 21b ... Contacting part 210: Recessed part 211 ... Screw hole 22, 22a, 22b ... Grip support part accommodating part 23 ... Reduced diameter part 230 ... Nut 24 ... Protective cover 25, 25a, 25b: Extension part 26 ... Resin rubber 27 ... Resin rubber 28 ... Insertion / release mechanism 280 ... Insertion pin 281 ... Biasing means 282 ... Knob 3. ··· Auxiliary frame 30 ··· Horizontal portion 300 · · · Screw hole 31 · · · Vertical portion 310 · · · Opening 32 · · · Connection frame 320 · · · slit 321 · · · screw 33 · · · ... Protective cover 34 ... Resin rubber 4 , 4x ... handrail body 40 ... side grip 41 ... upper grip 42 ... grip support part 420 ... fixing hole 5 ... leg part 50 ... ··· Main leg portion 51 ··· Auxiliary leg portion 52 ··· Rubber feet 53 ··· Screws 6 and 6x · · · Pressing portion 60 · · · Pressing body 600 · · · recessed portion 601 · · · .... Insertion hole 61 ... Connecting plate 610 ... Fixing hole 611 ... Mounting hole 62 ... Mounting block 620 ... Screw 63 ... Resin rubber 630 ... Convex part 7, 7a: abutment portion 7x: press receiving portion 70, 70a: guide portion 700: inclined surface 701: step 71: contact body 710 ... Through hole 711 ... Rubber fixing hole 712 ... Screw 72, 72a to 72c ... Resin rubber 7 20 ... convex part 73 ... convex part 74a-74c, 75a-75c ... block (sub block)
740, 750... Recessed 741, 751... Elongated hole 76... Screw 8, 8x ... Moving device 80 ... Handle knob 800 ... Cap 801 ... First Locking means (concave)
802 ... Diameter-enlarged portion 81 ··· Handle fixed cover 810 · Internal handle fixed cover 82 · · · Nut 820 · · · Flange 821 · · · Second locking means (concave)
822 ... Torso 83 ... Torque transmission / cutoff mechanism 830 ... Torque transmission lock mechanism 831 ... Lock pin 84 ... Ring member 840 ... Torque transmission surface 85 ... 2 annular member 850 ... torque transmission surface 86 ... biasing means 87 ... washer 88 ... flange member 880 ... cover 881 ... screw 89 ... bolt 890 ... screw 9, 9a, 9b ... tub sidewalls 90a, 90b ... rim 91a ... apron 91b ... outer wall _{L 0,} L 1, center and tub side wall of the _L 2 ... handrail Distance from the center of

Claims (11)

A handrail main body is attached, and a placement portion placed on the upper surface of the bathtub side wall and a contact portion connected to the placement portion and brought into contact with one side surface of the bathtub side wall are provided. A body frame having a contact base
An auxiliary frame detachably attached to the main body frame;
A pressing portion that presses the other side surface opposite to the side surface of the bathtub side wall against which the abutting portion abuts;
And a moving device that is attached to the auxiliary frame and moves the pressing portion forward and backward toward the abutting portion, and the abutting portion extends from the abutting surface of the abutting portion. An inclined surface formed so as to gradually reduce the thickness of the contact portion toward the contact base portion, and a guide portion having a plurality of steps or a combination of the inclined surface and the step is provided at a lower portion of the contact portion. A handrail for bathtubs characterized by that.   The handrail for a bathtub according to claim 1, wherein the horizontal depth of the step is 1 mm or more and 12 mm or less.   The handrail for bathtubs according to claim 2, wherein the horizontal depth of the step is 1 mm or more and 6 mm or less.   The handrail for bathtubs according to any one of claims 1 to 3, wherein a width of the guide portion is shorter than a width of the contact portion.   The handrail for bathtubs according to claim 1, wherein the abutment portion can change a thickness of a partial region thereof.   The handrail for bathtubs according to claim 5, wherein the contact portion includes a block that is detachably attached to a partial region of the contact base portion.   The handrail for bathtubs according to claim 6, wherein the block is composed of a plurality of sub-blocks that are detachably stacked and have the same or different thickness.   The handrail for a bathtub according to any one of claims 5 to 7, wherein the abutment portion has a thickness of an upper region thicker than a thickness of a lower region thereof.   The handrail for a bathtub according to any one of claims 1 to 8, wherein a leg portion whose end portion is in contact with the floor surface is attached to the main body frame.   The auxiliary frame has a horizontal portion attached to the mounting portion of the main body frame and a vertical portion to which the moving device is attached, and the auxiliary frame has the vertical portion of the auxiliary frame that is The handrail for a bathtub according to any one of claims 1 to 9, wherein an attachment position to the main body frame can be selected so as to approach and separate toward the contact portion of the main body frame.   The moving device includes a nut rotatably attached to the vertical portion of the auxiliary frame, a handle knob for rotating the nut, a tip portion connected to the pressing portion, and the nut The handrail for bathtubs according to any one of claims 1 to 10, wherein the handrail is constituted by a bolt that is screwed onto the handrail.